Vibrating cup.



w. E. SNYDER.

' VIBBATING CUP.

AfPLIOATION mum rnmza, 1911 Patented Aug. 15, 1911.

Attorneys ire WALTER E. SNYDER, OF WEST ri'rrs'roN, PENNSYLVANIA.

VIBBATING our.

Specification of Letters Patent.

Patented Aug. 15, 1911.

Application filed February 28, 1911. Serial No. 611,372.

To all whom it may concern:

Be it known that I, WAL'rER E. SNYDER, a citizen of the United States,residing at West Pittston, in the county of Luzerne and State ofPennsylvania, have invented a new and useful Vibrating Cup, of which thefollowing is a specification.

This invention has relation to vibrating cups adapted to be used forholding piston rod packings'and it consists in the novel constructionand arrangement of its parts as hereinafter shown and described.

The object of the invention is to provide a vibrating cup composed ofsections adapted to screw-thread in engagement with each other and whichhold between them bushing sections which have rod bearing surfaces andextend through to the end of the cup and have surfaces against which theball joint of the piston packing may rest. The cup is of that typegenerally known as multiangular in that in the assemblage of the partsit is provided with two surfaces one at an acute angle to the axis ofthe piston rod upon which the cup is located and the other at an obtuseangle to the axis of the said rod. The said surface which is at an acuteangle is located upon one of the sections of the cup, while the surfacewhich is at an obtuse angle is located upon the bushing sections. Byproviding a cup constructed as indicated, the bushing sections may bereadily renewed when worn without discarding the sections of the cup andconsequently a cup having properly adjusted and fitting bushings may bemaintained upon the piston rod at small cost.

In the accompanying drawings,-Figure 1 is a perspective view of aportion of a piston rod with the vibrating cup located thereon. Fig. 2is a perspective view of the bushing sections used in the cup. Fig. 3 isa transverse sectional view of a portion of the The cup consists ofsections 1 and 2 which are screw-threaded into engagement with eachother, the section 2 having at one end an inwardly disposed annularflange 3 and the section 1 having an inner surface 4 which is disposedat an acute angle to the axis of the rod. 5 upon which the cup ismounted.

Bushing sections 6 are located within the cup sections 2 and are seatedupon the inwardly disposed flange 3 thereof. The sections 6 are providedwith surfaces 7 which are inclined at obtuse angles to the axis of therod 5 and bushing sections 6 extend through the cup section 1 and havetheir ends flush with the end of the said cup section whereby bearingsfor a ball joint (not shown) is provided.

Packing rings 8 are received within the cup sect-ion 1 and bushingsections 6 in the usual manner and bear against the side of the rod 5and prevent the escape of steam as is usual in piston rod packings.

By providing a sectional bushing it will be seen that when the bushinghas become worn the sections thereof may be removed from between thesections 1 and 2 of the cup and new bushing sectionsmay be substituted,while the original cup may be employed for an indefinite length of time.

In addition to providing bearing surfaces for the ball joint, thebushing sections 6 also have bearing surfaces 9 which rest against thesides of the rod and these bearing surfaces 9 are sufficiently extensiveto prevent undue wear and thus extend the life of the bushing sections.

Having described the invention what I claim as new and desire to secureby Letters Patent is 1. A vibrating cup comprising sections having ascrew-threaded engagement with each other, one of which is provided withan internal flange, bushing sections seated above said flange, andhaving end portions flush with the ends of one of the first-mentionedsections, the first-mentioned sections securing the said bushing sectionin place.

2. A vibrating cup comprising sections having a screw-threadedengagement with each other, one of which is provided with an internalflange, the other section having a surface disposed at an acute angle tothe axis of the cup, bushing sections seated upon the flange and securedbetween the first-mentioned sections, said bushing sections having rodbearing surfaces and surfaces disposed at acute angles to the axis ofthe cup.

8. A vibrating cup comprising sections detachably engaging each other,one of which is provided with an internal flange, bushing sectionsseated upon said flange and having end port-ions flush with the end ofone of the first mentioned sections, the first mentioned sectionsecuring the said bushing sections in place.

4. A. vibrating cup comprising sections detachably engaging each other,one of which is provided with an internal flange,

the other section having a surface disposed at an acute angle to theaxis of the cup; hushas my own, I have hereto affixed my signaingsections seated upon the flange and seture inthe presence of twoWitnesses. cured between the first mentioned sections, WALTER E. SNYDER.said bushing sections having rod bearing Witnesses:

surfaces and surfaces disposed at obtuse JOHN M. ARMSTRONG,

angles to the axis of the cup. RosINA E. RICHARDS.

In testimony that I claim the foregoing Copies of this patent may beobtained for five cents each','by addressing the Commissioner ofPatents,

Washington, D. G.

